I hope you're joking by saying "...get high marks on their distortionless sound," and then link one of Audioquest's marketing...I mean scientific articles. Where are these "everyone" people you refer to?

To be fair, Nighthawk does have some surprisingly low distortion areas, which you'll see when Tyll publishes his measurements, but the tuning and sound is still ass regardless. What good does low distortion and fancy marketing pages do when you still get ass sound?

Can anybody point me in the direction of Muzo2's link? I'm genuinely curious what bio-cellulose is.

http://www.head-fi.org/t/568694/biocellulose-and-its-use-in-headphones-earphones-referring-the-recent-iem-example-vsonic-gr-07-r07

You misunderstand, perhaps I expressed myself unclearly: I linked to the official Audioquest homepage to proof that they indeed use a biocellulose diaphragm. My statement regaring their low distortion is based on the impressions of people here and one HF. The lack of distortion is of course directly related to the physical attributes of the driver, thus showing the potential of biocellulose diaphragms - the topic of conversation. The specific tuning of the headphones that Audioquest went for is irrelevant.

Congrats, you're now part of the "'everyone' people". And once again the tuning of the Nighthawks is utterly irrelevant to the discussion.

Perhaps the better question is if these are tuned more like the old Denon line or the new Fostex line.